ANTITERMITE TREATMENT FOR FOUNDATIONS CONTENTS INTRODUCTION TYPES SIGNS OF TERMITE ATTACK SITE PREPARATION STANDARDS CHEMICALS USED TREATMENT(METHODOLOGY AND RATE OF APPLICATION PRECAUTIONS) COST SURVEY PROS AND CONS . •) Additional anti termite treatment is done incase termite infestation is found in an existing building.INTRODUCTION • The purpose of the anti termite treatment is to provide a barrier against the sub terrain termites. • This treatment is broadly classified into 1) Pre-constructional anti termite treatment. . 2) Post-constructional anti termite treatment. •) Pre-constructional anti termite treatment is a process in which soil treatment is applied to a building in its early stages of construction. •) These treatments are usually done with the help of chemicals and are handled exclusively by professionals. TYPES OF TREATMENT • Partial Treatment This technique allows a wide variety of treatment strategies Ex: treatment of inner(walls. portions of framing. defined area less than ten (10) linear or square feet that is intended to protect a specific location or "spot. and treatment of the attached garage. stress cracks. patios) perimeter. This type of treatment may include interior and/or perimeter placements. or other acceptable termite food. cardboard.“ • Baiting System Termite baits consist of paper. columns) and outer(porches. expansion joints. bath traps. . • Spot Treatment Any treatment which concerns a limited. combined with a slow-acting substance lethal to termites. . Mud tubes on exterior walls . Any cracked or bubbling paint.SIGNS OF TERMITE INFESTATION : • • • • Wood that sounds hollow. Discarded wings from swarmer. leveling pegs. Removal of all trees. stumps. preliminary moistening will be required to fill the capillary spaces in soil in order to prevent the loss of emulsion through piping or excessive percolations. the water shall be pumped out before application of chemical emulsion and it should be applied only when the soil is absorbent. In the event of water logging of foundation. timber off-cuts and other building debris from the area to be treated. 5. where run-off of the treating solution is likely to occur. 4. 3. On clays and other heavy soils where penetration is likely to be slow and on sloping sites. If the soil to be treated is sandy or porous.SITE PREPARATION 1. 2. the surface of the soil should be scarified to a depth of 75mm at least. Remove all concrete form work if left anywhere. logs or roots from the building site. . . • IS 632 – Specification of Lindane.STANDARDS TO BE FOLLOWED: • IS 4015 (part-1&2) – Guide for handling cases of pesticide poisoning. • IS 6313 (part-1) – Code of practice for anti-termite measures in building constructional purposes. • IS 6313 (part-2) – Code of practice for anti-termite measures in building pre constructional chemical treatment. • IS 8944 – Specification for Chloropyrifos emulsified concentrates. 0 . (IS 6439 – 1978) 0.5 3.0 2. (IS 2682 – 1984) 1. Chlordane emulsifiable conc.CHEMICALS • Chemical concentration by weight Percentage 1. Chloropyrifios emulsifiable (IS 8944.1978) 1. Heptachlor emulsifiable conc. The perimeter of the site is drilled with holes and filled with chemicals. are treated prior to foundation work. Thus preventing any termite infestation.TREATMENTS PRE CONSTRUCTIONAL TREATMENT • The pre constructional treatment is to be applied during the construction stages of the sub structure to the plinth level. 4. 2. • Treating the soil completely with insecticides before constructing any slab is the most common method of anti-termite treatment forming a barrier between the soil and the building. The bed piping is treated by filling chemicals in an area around the . 3. Where slabs on grade will be built. by drilling holes and pouring chemicals into the soil. • The chemical treatment is done as follows: 1. The sides and bottom of the excavations. e. From this depth the backfill around the columns.5 litres / sqm. . treatment shall be done by rodding the earth at 150mm centres close to wall surface and spraying the chemical with the above dose i. beams and R. • After the earth filling is done. the treatment shall start at a depth of 500mm below ground level.C. • In case of framed structure.POST CONSTRUCTIONAL TREATMENT • In case of normal wall load bearing structures. or surface area of the bottom and sides to a height of at least 300mm.5 litres/sqm. of vertical surface of substructure on each side. the treatment shall be at 5 litres/sqm. wall trenches and basement. 7.5 litres/sqm. columns pits.C. for the horizontal surface at the bottom in the trenches / pits. of the vertical and at 5 litres / sqm. basement walls shall be treated at 7. the sides shall be treated at 7. • After the foundation work. the termites are unable to penetrate it. . If your building is on pillars. Insecticide is then poured. so that it reaches the soil to eliminate the termites present there and to stop them from re-infesting. therefore. the holes are drilled around the pillars and insecticide poured into the soil. the concrete is dense being a 1:2:4 (cement :fine aggregates : coarse aggregates. It is. holes are drilled as close as possible to the plinth wall about 300mm (1ft) apart from each other. unnecessary to start the treatment from the bottom of excavations. • If there exists a concrete cover or masonry apron around the walls of your building.• In RCC foundations. by volume) mix or richer. . . . inhaled as vapours or spray mist or swallowed. These chemicals can have an adverse effect upon health when absorbed through the skin. The containers should be clearly labelled and should be stored carefully out of the reach of children and pets animal. the treated soil barrier shall not be disturbed. • Chemicals should be sprayed in the absence of heat(sun. masks are strictly recommended. If by chance . See to that the spraying is done along the direction of the wind. Each part of the area shall receive the prescribed dosage of chemical emulsion.PRECAUTIONS DURING TREATMENT Utmost care shall be taken to see that the chemical barrier is complete and continuous. artificial heating systems) . immediate steps shall be taken to restore the continuity and completeness of the barrier system. They should be crushed and buried in covered trenches after use. treated soil barriers are disturbed. Once formed. thus usage of gloves. Cheminova Rs.Thiodan .Durmet .Dow chemicals .Bursban .BASF Rs. 450 per lt. Chlorpyrifos 50% . 20% . Endosulfan .Confidor .Endrin .BASF Rs. 350 per lt. Phlorodan .Termex .Bayer Rs. 550-650 per lt. Imidachlopride . 375 per lt.SHOP SURVEY Chemical name Chlorpyrifos Product name Company name Price .Ultra tech Rs.Dow chemicals . 250-350 per lt.Predator . PROS CONS Easy application Carcinogenic Long lasting Not a green solution Effective at low dosages Threat to nearby plants. animals and birds . THANK YOU AADHITYA JAYASEELAN ABHISHEK KOKA AKSHATA B.V AKSHATHA RAVI KUMAR .
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